Number of (n+3)X11 0..3 arrays with every 4X4 subblock commuting with each horizontal and vertical neighbor 4X4 subblock.

A186598

Number of (n+3)X11 0..3 arrays with every 4X4 subblock commuting with each horizontal and vertical neighbor 4X4 subblock.

Terms

    a(0) =78728809a(1) =1184226a(2) =1922661a(3) =5769381a(4) =12653493a(5) =17171973a(6) =17856813a(7) =20385141a(8) =23590989a(9) =27166341a(10) =31913637a(11) =43392285a(12) =72170517a(13) =105970461a(14) =144672021a(15) =210476109a(16) =337796493a(17) =520618896a(18) =732388035a(19) =1059900702a(20) =1658296953

External references